---
title: "Ball A is dropped from the top of a cliff. At the same time, Ball B is thrown straight upward from the ground at \\( 30 \\) \\( \\text{m/s} \\). The two balls pass each other after \\( 2.0 \\) \\( \\text{s} \\)."
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url: "https://nerd-notes.com/ubq/98438/"
date_modified: "2025-07-26T03:24:12+00:00"
---

# Ball A is dropped from the top of a cliff. At the same time, Ball B is thrown straight upward from the ground at \( 30 \) \( \text{m/s} \). The two balls pass each other after \( 2.0 \) \( \text{s} \).

Ball A is dropped from the top of a cliff. At the same time, Ball B is thrown straight upward from the ground at \( 30 \) \( \text{m/s} \). The two balls pass each other after \( 2.0 \) \( \text{s} \).

**Part a)** How high is the cliff? *(3 points)*

**Part b)** What is the velocity of each ball at the moment they pass? *(3 points)*


*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/98438/*